gaster with sparse pubescence

The first gastral tergite is marked by only sparse pubescence, giving it a shiny appearance. Used in Antkey to separate Brachymyrmex heeri and Brachymyrmex patagonicus from Brachymyrmex minutus and Brachymyrmex obscurior. Also used to separate all other Nylanderia from Nylanderia bourbonica, Nylanderia fulva and Nylanderia vaga.